| River | % Correct |
|---|---|
| Mississippi | 99%
|
| Missouri | 86%
|
| Colorado | 84%
|
| Rio Grande | 83%
|
| Ohio | 75%
|
| Hudson | 69%
|
| Arkansas | 50%
|
| Potomac | 50%
|
| Columbia | 47%
|
| Yukon | 47%
|
| Tennessee | 45%
|
| Red | 44%
|
| Snake | 41%
|
| Delaware | 36%
|
| Mobile / Alabama / Coosa | 32%
|
| Platte | 24%
|
| Connecticut | 23%
|
| Sacramento | 21%
|
| Savannah | 17%
|
| Susquehanna | 16%
|
| Green | 15%
|
| Yellowstone | 15%
|
| Chattahoochee | 13%
|
| Gila | 13%
|
| Wabash | 13%
|
| Willamette | 13%
|
| Pecos | 12%
|
| Cumberland | 11%
|
| James | 8%
|
| Klamath | 7%
|
| St. John | 6%
|